@misc{Gislason_Haflidi_P._Investigation_2006, author={Gislason, Haflidi P. and Seghier, Djelloul}, contributor={Gaj, Miron. Redakcja and Wilk, Ireneusz. Redakcja}, year={2006}, rights={Wszystkie prawa zastrzeżone (Copyright)}, publisher={Oficyna Wydawnicza Politechniki Wrocławskiej}, description={Optica Applicata, Vol. 36, 2006, nr 2-3, s. 359-371}, language={eng}, abstract={Noise spectroscopy is an effective tool to characterize the quality of semiconductor bulk and surface and a figure of merit for device quality as a whole. In certain cases, low-frequency noise can be used for the evaluation of device reliability. Further, measurements of the noise characteristics of GaAs materials are a useful technique when it comes to studying deep defects exhibiting a thermally activated capture. In the paper we present the technique of noise spectroscopy and illustrate it with some applications. They include photocapacitive and noise measurements on a deep DX-like defect which gives rise to persistent photoconductivity in Mg-doped p-type GaN films. We also apply DLTS, photoconductivity and noise spectroscopy to characterize n-type bulk GaAs and an EL2-related metastable defect. The third example illustrates experimental results on the photoconductivity and noise of forward and reverse biased Al0.3Ga0.7N/GaN-based Schottky barriers. In the light of these results the nature and origin of the responsible centers are discussed.}, title={Investigation of deep defects using generation-recombination noise}, type={artykuł}, keywords={optyka, generation-recombination noise, deep defects, GaN, AlGaN, GaAs}, }